To all whom it may concern



T. A. WESTON, OFBUFFALO,-,NEW YORK.

Lei-im' Patent ivi. 75,093, time March a, 186s.

menovnMENT IN smesso-BEACH LEVER.

@Ligt inlgzhulr rtfemiptn in ttm Enters nxut mit making p art iftige-sume.

ro LL WH'OMIT MAY CGNGERN:

` Be it known thot I, TrAL WESTON, ofBu'alo, in thecounty of Erie, undState4 of New York, hnre'invented a eertain new and -usefulImprovementjin Ratchet-Braces or Levers und I dohereby declare that thefollowing is g. full andvexaetdeseription thereof, reference being hadto the accompanying drawings, making port of this specification.

` Figure A1 is'unolevation o1 my improved instrument:4

Figure-'2, a. sectionin-plsnefz refiig. 1. I `Like letters of referenceindicate corresponding parte in hbth igures. v

Ieuibody inv this improvement my dilerential principle'of teethnndpuwls, viz, the employment of an vuneqiml relntivenumber of suid parts,lwhereby I um enabled to attain by the use of comparatively large teeththe sinne ncety of mljustuxentor engagement-as is attained by the use ofsmallrtee'th, while the great weer and slight holdlof tli'e latter areavoided. I- dov not eluim' this principle in the present application,but only the Aspecial arrangement ofone pivotedf'mml one slidingpovvl,and the eonstr'uotion ot' the instrument t'o 'embody- In'thedrawingMindiea-tes :liever or handle, and B n right-angled head or framebolted thereto, enclosing the ratchet-hond 0,'which is vprovided withteeth a a, usshown. The lower .end ofthe ratch'etlhend has a. tool-Soeket,f,fnd t's up'per end is fedA down by u. screw, D, whenevernit isdesired to use sucho deyi'ce. Two pnwls, E F,are made to engagelternutely-u'ith the teeth a q. The paul E is pivotcd ut b on one side,so as to swing up to engagement. TheQpnwl F'simply. slides uplongitudinally, not being pivoted. These powls nre held to eng'gementwith the teeth by smell springs c e, ns shown. .A closed side, H, undpartition G, retain the sliding pawl in place, and the portr also servest'o seperate the two pawls.

By Vthus eouibining one pivoted and one sliding pawl withthe-ratchet-hend, I am enabled to place the instrument in a. most Ycon'ipoet and eifeetive form. Two sliding pnwls could not well be-modeeffective in this form, for the reason that ,they would be too for fre'mth'efcentre, and their` hold would be too angular on the teeth. Twopivoted pswls would meetwith the sume objection, und the additional onethat they would require -`toe much space, and-would widen theinstrument, 'The sliding and pivotedpawls, as described, obviete-th'oseIobjections by'producing' the most eeetive hold on the teeth ondrestingin n. no rrovv compass.l This arrangement of the pn'ls adapts theinstrument to many uses where ordin'nry pnwl's connotbe employed. Theemployment oi' two or more pawls, as described, with an uneq'iml numberof teeth, the seid pouls engaging alternately, avoids the necessity ofmany ne teeth, which Aallovrzhut a slight hold, undwhieh soon weer out.-By the m'eans described, I. am enabled to employ'eompsratively largeteeth, and still furnish as many engagements by theplurality of parvis.

' What I claim as my invention, und desire to secure by Letters Patent,is-

Tbe special arrangement of one sliding pnwl F .and one'pivote'd `pzrwlE, as described, when combined with A rntehet-hed, C, having an unequalnumber of teeth, with seid powls, ,the whole operating in themanner andfor the purpose speeiiied. y y v In witness whereof, I have hereuntosigned my name in the presence of two subscribingwitnesses.

' T. A. WESTON.

Witnesses:

JAY Hun, Tnoms C. Hemus..

